I¡¯m wondering why we would need this. Not sure about sBitx, doesn¡¯t the zBitx have a high precision RTC with coin battery inside ? I saw some posting about a zBitx user found the battery missing when it arrived . It should not drift off too much if you sync the clock recently (I am thinking within a couple of weeks at least)
Li KQ4EXQ
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On May 19, 2025, at 9:08?AM, Gordon Gibby KX4Z via groups.io <docvacuumtubes@...> wrote:
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Thanks, Andy!
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We had to deal with this a year or so back, so that we could compete in FIELD DAY with FT8/FT4 without requiring any internet.? ?There are of course many ways to "sync" these signals and they are pretty resilient even to being off more than a second -- but we wanted a general purpose solution.? So we built our own NTP server using a cheap dongle GPS receiver and software on a raspberry pi.? ?Something similar should work on the SBitx etc...
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We built ours as a standalone system and have used it in a couple of Field Days I think now with good success.
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Gordon KX4Z
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